/* -*-c++-*- osgModeling - Copyright (C) 2008 Wang Rui <wangray84@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.

* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef OSGMODELING_ALGORITHM
#define OSGMODELING_ALGORITHM 1

#include <osg/Object>
#include <osgModeling/Export>

namespace osgModeling {

class Curve;
class Model;

/** Algorithm callback base class
 * Creation and modification of models need kinds of algorithms.
 * The callback helps build different customized models.
 * Must implement the operator() method to create customized callbacks.
 */
class OSGMODELING_EXPORT AlgorithmCallback : public osg::Object
{
public:
    AlgorithmCallback() {}
    AlgorithmCallback( const AlgorithmCallback& copy, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY ):
        osg::Object() {}
    META_Object( osgModeling, AlgorithmCallback );

    virtual void operator()( Model* ) {}
    virtual void operator()( Curve* ) {}

protected:
    virtual ~AlgorithmCallback() {}
};

}

#endif
